Home / 90,787.08-125,287.92-53,083.20

Finding the Fourth Proportional to 90,787.08, 125,287.92 and 53,083.20

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Solution

The fourth proportional to 90,787.08, 125,287.92 and 53,083.20 is: 73,255.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,787.08 : 125,287.92 = 53,083.20 : x
  2. Step 2: Convert to fraction form
    90,787.08/125,287.92 = 53,083.20/x
  3. Step 3: Cross multiply
    90,787.08x = 125,287.92 × 53,083.20
  4. Step 4: Simplify right side
    90,787.08x = 6,650,683,714.94
  5. Step 5: Solve for x
    x = 6,650,683,714.94/90,787.08
  6. Step 6: Final answer
    x = 73,255.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.